Pen



FIG. 1 is a perspective view of a pen showing our new design in astorage state;

FIG. 2 is a front view thereof, the rear view, left side view, and rightside view being identical;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a perspective view of the pen in a writing state and the tipof the pen being exposed;

FIG. 6 is a front view thereof, the rear view, left side view, and rightside view being identical;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

CLAIM We claim the ornamental design for a pen, as shown and described.